[Length 22 (Female) to 28 (Male) in. Wingspan 33 (F) to 38 (M) in.]

This Greater Sage Grouse was photographed at Arapaho NWR, CO, USA. Photo taken with a Nikkor ED 300mm f4.5 lens on Ektachrome 800 film. (Date: June 1986)

[Length 22 (Female) to 28 (Male) in. Wingspan 33 (F) to 38 (M) in.]

This male Greater Sage-Grouse was photographed at County Road 19, Wallden, Colorado, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC17E II 1.7x Teleconverter on a Nikon D7100 camera. (Date: June 1, 2016)

[Length 13 in. Wingspan 21 in.]

This Black Guillemot was photographed at Lerwick, Mainland, Shetland, Scotland, Great Britain. Photo taken with a Nikkor 300mm EDAF-S f4 lens (EFL=450mm) on a Nikon D100 camera. (Date: June 10, 2004)

[Length 13 in. Wingspan 21 in.]

This Black Guillemot was photographed at Lerwick, Mainland, Shetland, Scotland, Great Britain. Photo taken with a Nikkor 300mm EDAF-S f4 lens (EFL=450mm) on a Nikon D100 camera. (Date: June 10, 2004)

[Length 13 in. Wingspan 21 in.]

This Black Guillemot was photographed at Glouchester, MA, USA. Photo taken with a Nikkor 500mm f8.0 mirror lens on Ektachrome 800 film. (Date: February 1987)

[Length 13.5 in. Wingspan 23 in.]

This Pigeon Guillemot was photographed at Margo Dodd Park, Morro Bay, California, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC17E II 1.7x Teleconverter on a Nikon D7000 camera. (Date: July 9, 2013)

[Length 13.5 in. Wingspan 23 in.]

This Pigeon Guillemot was photographed at Margo Dodd Park, Morro Bay, California, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC17E II 1.7x Teleconverter on a Nikon D7000 camera. (Date: July 9, 2013)

[Length 20 to 25 in. Wingspan 59 to 71 in.]

Four species of Guineafowl are found across sub-Saharan Africa. Some species are found in open habitats such as savanna or semi-desert, while others occur in forests. Helmeted Guineafowl have been introduced into many countries (including the United States) to be raised as food or kept as pets. This captive (but obviously escaped) Helmeted Guineafowl was photographed at the Walmart Neighborhood Market, Weslaco, Texas. Photo taken with a 2.7mm lens on a LG Rumor Reflex S Smartphone. (Date: October 17, 2014)

[Length 20 to 25 in. Wingspan 59 to 71 in.]

This captive (but obviously escaped) Helmeted Guineafowl flock was photographed at the Walmart Neighborhood Market, Weslaco, Texas. Photo taken with a 2.7mm lens on a LG Rumor Reflex S Smartphone. (Date: October 17, 2014)